william la jeunesse on that story live in l.a. now. william, good morning, what do you have? >> bill it seems to be the one thing that lawmakers a pier t appear to agree on. guns for the deraged is a patchwork of records that the government has treated not with try or the. and it begins with this application to buy a firearm. it is the first line of defense against gun crime, the background check. >> this is to make sure that you don't have any -- anything prohibiting in your past that would keep you from owning a firearm. >> reporter: fell ons, fugitives, domestic abusers, drug ears, the mentally ill, illegal aliens among others cannot buy a gun. >> you are going to wait ten days to put you through a background check. >> reporter: all states require f.b.i. background checks on weapons sold as gun stores. some include gun show sales for most weapons. the majority do not. a loophole some lawmakers hope to close. >> background checks for all firearm sales, not just by licensed dealers, but also at gun shows, private sales. >> reporter: but the system remains gross lee incomplet